...of five cottonmouths was determined by placing each individual in an enclosed area and heating it with an infrared lamp... 
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
ランダム例文：
etiology Kendal curvatures
便利！手書き漢字入力検索
この漢字は何でしょう？？